output
20182026
most citedDark Energy Survey Year 3 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing

1.2k citations

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35 papers · 1 filter

astro-ph.EP2026

Assessing the Climate and Habitability of Tidally Locked Rocky Exoplanets

Erica Bisesi, Giuseppe Murante, Jost von Hardenberg +5

Tidally locked exoplanets orbiting M dwarf stars are prime targets in the search for habitable worlds, yet their complex climate dynamics challenge conventional models of habitabil…

astro-ph.EP2026

Euclid: Asteroid rotation periods from the Euclid Ecliptic Survey

B. Y. Irureta-Goyena, B. Altieri, J. -P. Kneib +142

The Euclid Ecliptic Survey was conducted during the calibration phase of the mission, 23-31 December 2023, as a campaign to study Solar System objects. We used data from this surve…

astro-ph.EP2026

Interaction between vegetation and Snowball phases in the late Proterozoic Earth

Erica Bisesi, Giuseppe Murante, Antonello Provenzale +3

Between 2.4 and 0.6 Gy ago, our planet underwent several episodes of global glaciations, including the Snowball Earth case that ended 635 My ago. Causes of this last Snowball event…

astro-ph.EP2025★ 4 cited

The ESPRESSO transmission spectrum of HD189733b : Extracting the planetary sodium and lithium signatures amid stellar contamination

D. Mounzer, W. Dethier, C. Lovis +20

While transmission spectroscopy has allowed us to detect many atomic and molecular species in exoplanet atmospheres, the improvement in resolution and signal-to-noise ratio enabled…

astro-ph.EP2025★ 2 cited

Alkali phenoxides in comets

M. Fulle, P. Molaro, A. Rotundi +4

Potassium was first detected in spectra of the sungrazer comet Ikeya-Seki at the heliocentric distance rh = 0.15 au and, 48 years later, in comets PanSTARRS and ISON at rh = 0.46 a…

astro-ph.EP2025★ 12 cited

Revisiting the multi-planetary system of the nearby star HD 20794: Confirmation of a low-mass planet in the habitable zone of a nearby G-dwarf

N. Nari, X. Dumusque, N. C. Hara +44

Close-by Earth analogs and super-Earths are of primary importance because they will be preferential targets for the next generation of direct imaging instruments. Bright and close-…

astro-ph.EP2024★ 27 cited

A sub-Earth-mass planet orbiting Barnard's star

J. I. Gonzalez Hernandez, A. Suarez Mascareno, A. M. Silva +37

Barnard's star is a primary target within the ESPRESSO guaranteed time observations (GTO) as it is the second closest neighbour to our Sun after the Centauri stellar system. We…

astro-ph.EP2024★ 2 cited

Impact of vegetation albedo on the habitability of Earth-like exoplanets

Erica Bisesi, Giuseppe Murante, Antonello Provenzale +8

Vegetation can modify the planetary surface albedo via the Charney mechanism, as plants are usually darker than the bare surface of the continents. We updated ESTM (Earth-like Surf…

astro-ph.EP2024★ 17 cited

Euclid: Early Release Observations -- A glance at free-floating new-born planets in the sigma Orionis cluster

E. L. Martín, M. {Ž}erjal, H. Bouy +175

We provide an early assessment of the imaging capabilities of the Euclid space mission to probe deeply into nearby star-forming regions and associated very young open clusters, and…

astro-ph.EP2023★ 41 cited

Detection of a high-velocity sodium feature on the ultra-hot Jupiter WASP-121 b

J. V. Seidel, F. Borsa, L. Pino +19

Ultra-hot Jupiters, with their high equilibrium temperatures and resolved spectral lines, have emerged as a perfect testbed for new analysis techniques in the study of exoplanet at…

astro-ph.EP2022★ 25 cited

Planetary system around LTT 1445A unveiled by ESPRESSO: Multiple planets in a triple M-dwarf system

B. Lavie, F. Bouchy, C. Lovis +32

We present radial velocity follow-up obtained with ESPRESSO of the M-type star LTT 1445A (TOI-455), for which a transiting planet b with an orbital period of~5.4 days was detected…

astro-ph.EP2022★ 55 cited

Detection of barium in the atmospheres of the ultra-hot gas giants WASP-76b and WASP-121b

T. Azevedo Silva, O. D. S. Demangeon, N. C. Santos +33

High-resolution spectroscopy studies of ultra-hot Jupiters have been key in our understanding of exoplanet atmospheres. Observing into the atmospheres of these giant planets allows…

astro-ph.EP2022★ 38 cited

Automatic model-based telluric correction for the ESPRESSO data reduction software. Model description and application to radial velocity computation

R. Allart, C. Lovis, J. Faria +21

Ground-based high-resolution spectrographs are key instruments for several astrophysical domains. Unfortunately, the observed spectra are contaminated by the Earth's atmosphere. Wh…

astro-ph.EP2022★ 13 cited

EOS-ESTM: A flexible climate model for habitable exoplanets

L. Biasiotti, P. Simonetti, G. Vladilo +8

Rocky planets with temperate conditions provide the best chance for discovering habitable worlds and life outside the Solar System. In the last decades, new instrumental facilities…

astro-ph.EP2022★ 130 cited

A candidate short-period sub-Earth orbiting Proxima Centauri

J. P. Faria, A. Suárez Mascareño, P. Figueira +34

Proxima Centauri is the closest star to the Sun. This small, low-mass, mid M dwarf is known to host an Earth-mass exoplanet with an orbital period of 11.2 days within the habitable…

astro-ph.EP2021★ 9 cited

EOS: Atmospheric Radiative Transfer in Habitable Worlds with HELIOS

Paolo Simonetti, Giovanni Vladilo, Laura Silva +5

We present EOS, a procedure for determining the Outgoing Longwave Radiation (OLR) and top-of-atmosphere (TOA) albedo for a wide range of conditions expected to be present in the at…

astro-ph.EP2021★ 66 cited

The Rossiter-McLaughlin effect Revolutions: An ultra-short period planet and a warm mini-Neptune on perpendicular orbits

V. Bourrier, C. Lovis, M. Cretignier +34

Comparisons of the alignment of exoplanets with a common host star can be used to distinguish among concurrent evolution scenarios. However, multi-planet systems usually host mini-…

astro-ph.EP2021★ 30 cited

C/2014 UN271 (Bernardinelli-Bernstein): the nearly spherical cow of comets

Pedro H. Bernardinelli, Gary M. Bernstein, Benjamin T. Montet +64

C/2014 UN271 (Bernardinelli-Bernstein) is a comet incoming from the Oort cloud which is remarkable in having the brightest (and presumably largest) nucleus of any well-measured com…

astro-ph.EP2021★ 64 cited

A search of the full six years of the Dark Energy Survey for outer Solar System objects

Pedro H. Bernardinelli, Gary M. Bernstein, Masao Sako +64

We present the results of a search for outer Solar System objects in the full six years of data (Y6) from the Dark Energy Survey (DES). The DES covered a contiguous deg…

astro-ph.EP2021★ 18 cited

HD22496b: the first ESPRESSO standalone planet discovery

J. Lillo-Box, J. P. Faria, A. Suárez Mascareño +32

The ESPRESSO spectrograph is a new powerful tool to detect and characterize extrasolar planets. Its design allows unprecedented radial velocity precision (down to a few tens of cm/…

astro-ph.EP2021★ 107 cited

Warm terrestrial planet with half the mass of Venus transiting a nearby star

Olivier D. S. Demangeon, M. R. Zapatero Osorio, Y. Alibert +42

The advent of a new generation of radial velocity instruments has allowed us to break the one Earth-mass barrier. We report a new milestone in this context with the detection of th…

astro-ph.EP2021★ 66 cited

Into the Storm: Diving into the winds of the ultra hot Jupiter WASP-76 b with HARPS and ESPRESSO

J. V. Seidel, D. Ehrenreich, A. Allart +26

Despite swift progress in the characterisation of exoplanet atmospheres in composition and structure, the study of atmospheric dynamics has not progressed at the same speed. While…

astro-ph.EP2021★ 35 cited

A sub-Neptune and a non-transiting Neptune-mass companion unveiled by ESPRESSO around the bright late-F dwarf HD 5278 (TOI-130)

A. Sozzetti, M. Damasso, A. S. Bonomo +45

[Abridged] We exploit the extreme radial velocity (RV) precision of the ultra-stable echelle spectrograph ESPRESSO on the VLT to unveil the physical properties of the transiting su…

astro-ph.EP2021★ 195 cited

Six transiting planets and a chain of Laplace resonances in TOI-178

A. Leleu, Y. Alibert, N. C. Hara +152

Determining the architecture of multi-planetary systems is one of the cornerstones of understanding planet formation and evolution. Resonant systems are especially important as the…